15721971120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:972

約数の個数: 240

約数和(自身を含む): 53430062400

約数和(自身を除く): 37708091280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 197, 199, 240, 360, 394, 398, 557, 591, 597, 720, 788, 796, 985, 995, 1114, 1182, 1194, 1576, 1592, 1671, 1773, 1791, 1970, 1990, 2228, 2364, 2388, 2785, 2955, 2985, 3152, 3184, 3342, 3546, 3582, 3940, 3980, 4456, 4728, 4776, 5013, 5570, 5910, 5970, 6684, 7092, 7164, 7880, 7960, 8355, 8865, 8912, 8955, 9456, 9552, 10026, 11140, 11820, 11940, 13368, 14184, 14328, 15760, 15920, 16710, 17730, 17910, 20052, 22280, 23640, 23880, 25065, 26736, 28368, 28656, 33420, 35460, 35820, 39203, 40104, 44560, 47280, 47760, 50130, 66840, 70920, 71640, 78406, 80208, 100260, 109729, 110843, 117609, 133680, 141840, 143280, 156812, 196015, 200520, 219458, 221686, 235218, 313624, 329187, 332529, 352827, 392030, 401040, 438916, 443372, 470436, 548645, 554215, 588045, 627248, 658374, 665058, 705654, 784060, 877832, 886744, 940872, 987561, 997587, 1097290, 1108430, 1176090, 1316748, 1330116, 1411308, 1568120, 1645935, 1662645, 1755664, 1764135, 1773488, 1881744, 1975122, 1995174, 2194580, 2216860, 2352180, 2633496, 2660232, 2822616, 3136240, 3291870, 3325290, 3528270, 3950244, 3990348, 4389160, 4433720, 4704360, 4937805, 4987935, 5266992, 5320464, 5645232, 6583740, 6650580, 7056540, 7900488, 7980696, 8778320, 8867440, 9408720, 9875610, 9975870, 13167480, 13301160, 14113080, 15800976, 15961392, 19751220, 19951740, 21836071, 26334960, 26602320, 28226160, 39502440, 39903480, 43672142, 65508213, 79004880, 79806960, 87344284, 109180355, 131016426, 174688568, 196524639, 218360710, 262032852, 327541065, 349377136, 393049278, 436721420, 524065704, 655082130, 786098556, 873442840, 982623195, 1048131408, 1310164260, 1572197112, 1746885680, 1965246390, 2620328520, 3144394224, 3930492780, 5240657040, 7860985560, 15721971120]

約数ペア:

[(1, 15721971120), (2, 7860985560), (3, 5240657040), (4, 3930492780), (5, 3144394224), (6, 2620328520), (8, 1965246390), (9, 1746885680), (10, 1572197112), (12, 1310164260), (15, 1048131408), (16, 982623195), (18, 873442840), (20, 786098556), (24, 655082130), (30, 524065704), (36, 436721420), (40, 393049278), (45, 349377136), (48, 327541065), (60, 262032852), (72, 218360710), (80, 196524639), (90, 174688568), (120, 131016426), (144, 109180355), (180, 87344284), (197, 79806960), (199, 79004880), (240, 65508213), (360, 43672142), (394, 39903480), (398, 39502440), (557, 28226160), (591, 26602320), (597, 26334960), (720, 21836071), (788, 19951740), (796, 19751220), (985, 15961392), (995, 15800976), (1114, 14113080), (1182, 13301160), (1194, 13167480), (1576, 9975870), (1592, 9875610), (1671, 9408720), (1773, 8867440), (1791, 8778320), (1970, 7980696), (1990, 7900488), (2228, 7056540), (2364, 6650580), (2388, 6583740), (2785, 5645232), (2955, 5320464), (2985, 5266992), (3152, 4987935), (3184, 4937805), (3342, 4704360), (3546, 4433720), (3582, 4389160), (3940, 3990348), (3980, 3950244), (4456, 3528270), (4728, 3325290), (4776, 3291870), (5013, 3136240), (5570, 2822616), (5910, 2660232), (5970, 2633496), (6684, 2352180), (7092, 2216860), (7164, 2194580), (7880, 1995174), (7960, 1975122), (8355, 1881744), (8865, 1773488), (8912, 1764135), (8955, 1755664), (9456, 1662645), (9552, 1645935), (10026, 1568120), (11140, 1411308), (11820, 1330116), (11940, 1316748), (13368, 1176090), (14184, 1108430), (14328, 1097290), (15760, 997587), (15920, 987561), (16710, 940872), (17730, 886744), (17910, 877832), (20052, 784060), (22280, 705654), (23640, 665058), (23880, 658374), (25065, 627248), (26736, 588045), (28368, 554215), (28656, 548645), (33420, 470436), (35460, 443372), (35820, 438916), (39203, 401040), (40104, 392030), (44560, 352827), (47280, 332529), (47760, 329187), (50130, 313624), (66840, 235218), (70920, 221686), (71640, 219458), (78406, 200520), (80208, 196015), (100260, 156812), (109729, 143280), (110843, 141840), (117609, 133680)]